Coexisting normal and triaxial superdeformed structures in Lu-165

G Schonwasser; N Nenoff; H Hubel; GB Hagemann; P Bednarczyk; G Benzoni; A Bracco; P Bringel; R Chapman; D Curien; J Domscheit; B Herskind; DR Jensen; S Leoni; G Lo Bianco; WC Ma; A Maj; A Neusser; SW Odegard; CM Petrache; D Rossbach; Hans Ryde; AK Singh; KH Spohr

doi:10.1016/j.nuclphysa.2004.02.006

Coexisting normal and triaxial superdeformed structures in Lu-165

G Schonwasser, N Nenoff, H Hubel, GB Hagemann, P Bednarczyk, G Benzoni, A Bracco, P Bringel, R Chapman, D Curien, J Domscheit, B Herskind, DR Jensen, S Leoni, G Lo Bianco, WC Ma, A Maj, A Neusser, SW Odegard, CM PetracheD Rossbach, Hans Ryde, AK Singh, KH Spohr

Research output: Contribution to journal › Article › peer-review

Abstract

High-spin states in Lu-165 were populated in the La-139(Si-30, 4n) reaction at a beam energy of 152 MeV and gamma-ray coincidences were measured with the EUROBALL spectrometer array. Nine new rotational bands were discovered, known band structures were considerably extended and many inter-band transitions were found. Structures with normal deformation coexist with bands associated with the strongly deformed triaxial energy minima found in calculations. Three of these triaxial bands form a family of wobbling excitations with phonon quanta n(w) = 0, 1 and 2. The wobbling mode is a unique signature of nuclear triaxiality. Configuration assignments are discussed for the observed band structures. An exchange of configuration between two of the new bands due to mixing is observed, resulting in different signature partnerships at low and high spins.

Original language	English
Pages (from-to)	393-424
Journal	Nuclear Physics, Section A
Volume	735
Issue number	3-4
DOIs	https://doi.org/10.1016/j.nuclphysa.2004.02.006
Publication status	Published - 2004

Subject classification (UKÄ)

Subatomic Physics

Free keywords

nuclear reactions La-139(Si-30
I
4n)
E=152 MeV
gamma
gamma gamma-coin
Euroball array
triaxial deformation
shape coexistence
configurations
Lu-165 deduced high-spin levels
pi
J
measured E gamma

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10.1016/j.nuclphysa.2004.02.006

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Schonwasser, G., Nenoff, N., Hubel, H., Hagemann, GB., Bednarczyk, P., Benzoni, G., Bracco, A., Bringel, P., Chapman, R., Curien, D., Domscheit, J., Herskind, B., Jensen, DR., Leoni, S., Lo Bianco, G., Ma, WC., Maj, A., Neusser, A., Odegard, SW., ... Spohr, KH. (2004). Coexisting normal and triaxial superdeformed structures in Lu-165. Nuclear Physics, Section A, 735(3-4), 393-424. https://doi.org/10.1016/j.nuclphysa.2004.02.006

@article{0703b06ef045412e9da4cf43d2a32e43,

title = "Coexisting normal and triaxial superdeformed structures in Lu-165",

abstract = "High-spin states in Lu-165 were populated in the La-139(Si-30, 4n) reaction at a beam energy of 152 MeV and gamma-ray coincidences were measured with the EUROBALL spectrometer array. Nine new rotational bands were discovered, known band structures were considerably extended and many inter-band transitions were found. Structures with normal deformation coexist with bands associated with the strongly deformed triaxial energy minima found in calculations. Three of these triaxial bands form a family of wobbling excitations with phonon quanta n(w) = 0, 1 and 2. The wobbling mode is a unique signature of nuclear triaxiality. Configuration assignments are discussed for the observed band structures. An exchange of configuration between two of the new bands due to mixing is observed, resulting in different signature partnerships at low and high spins.",

keywords = "nuclear reactions La-139(Si-30, I, 4n), E=152 MeV, gamma, gamma gamma-coin, Euroball array, triaxial deformation, shape coexistence, configurations, Lu-165 deduced high-spin levels, pi, J, measured E gamma",

author = "G Schonwasser and N Nenoff and H Hubel and GB Hagemann and P Bednarczyk and G Benzoni and A Bracco and P Bringel and R Chapman and D Curien and J Domscheit and B Herskind and DR Jensen and S Leoni and {Lo Bianco}, G and WC Ma and A Maj and A Neusser and SW Odegard and CM Petrache and D Rossbach and Hans Ryde and AK Singh and KH Spohr",

year = "2004",

doi = "10.1016/j.nuclphysa.2004.02.006",

language = "English",

volume = "735",

pages = "393--424",

journal = "Nuclear Physics, Section A",

issn = "0375-9474",

publisher = "Elsevier",

number = "3-4",

}

Schonwasser, G, Nenoff, N, Hubel, H, Hagemann, GB, Bednarczyk, P, Benzoni, G, Bracco, A, Bringel, P, Chapman, R, Curien, D, Domscheit, J, Herskind, B, Jensen, DR, Leoni, S, Lo Bianco, G, Ma, WC, Maj, A, Neusser, A, Odegard, SW, Petrache, CM, Rossbach, D, Ryde, H, Singh, AK & Spohr, KH 2004, 'Coexisting normal and triaxial superdeformed structures in Lu-165', Nuclear Physics, Section A, vol. 735, no. 3-4, pp. 393-424. https://doi.org/10.1016/j.nuclphysa.2004.02.006

TY - JOUR

T1 - Coexisting normal and triaxial superdeformed structures in Lu-165

AU - Schonwasser, G

AU - Nenoff, N

AU - Hubel, H

AU - Hagemann, GB

AU - Bednarczyk, P

AU - Benzoni, G

AU - Bracco, A

AU - Bringel, P

AU - Chapman, R

AU - Curien, D

AU - Domscheit, J

AU - Herskind, B

AU - Jensen, DR

AU - Leoni, S

AU - Lo Bianco, G

AU - Ma, WC

AU - Maj, A

AU - Neusser, A

AU - Odegard, SW

AU - Petrache, CM

AU - Rossbach, D

AU - Ryde, Hans

AU - Singh, AK

AU - Spohr, KH

PY - 2004

Y1 - 2004

N2 - High-spin states in Lu-165 were populated in the La-139(Si-30, 4n) reaction at a beam energy of 152 MeV and gamma-ray coincidences were measured with the EUROBALL spectrometer array. Nine new rotational bands were discovered, known band structures were considerably extended and many inter-band transitions were found. Structures with normal deformation coexist with bands associated with the strongly deformed triaxial energy minima found in calculations. Three of these triaxial bands form a family of wobbling excitations with phonon quanta n(w) = 0, 1 and 2. The wobbling mode is a unique signature of nuclear triaxiality. Configuration assignments are discussed for the observed band structures. An exchange of configuration between two of the new bands due to mixing is observed, resulting in different signature partnerships at low and high spins.

AB - High-spin states in Lu-165 were populated in the La-139(Si-30, 4n) reaction at a beam energy of 152 MeV and gamma-ray coincidences were measured with the EUROBALL spectrometer array. Nine new rotational bands were discovered, known band structures were considerably extended and many inter-band transitions were found. Structures with normal deformation coexist with bands associated with the strongly deformed triaxial energy minima found in calculations. Three of these triaxial bands form a family of wobbling excitations with phonon quanta n(w) = 0, 1 and 2. The wobbling mode is a unique signature of nuclear triaxiality. Configuration assignments are discussed for the observed band structures. An exchange of configuration between two of the new bands due to mixing is observed, resulting in different signature partnerships at low and high spins.

KW - nuclear reactions La-139(Si-30

KW - I

KW - 4n)

KW - E=152 MeV

KW - gamma

KW - gamma gamma-coin

KW - Euroball array

KW - triaxial deformation

KW - shape coexistence

KW - configurations

KW - Lu-165 deduced high-spin levels

KW - pi

KW - J

KW - measured E gamma

U2 - 10.1016/j.nuclphysa.2004.02.006

DO - 10.1016/j.nuclphysa.2004.02.006

M3 - Article

SN - 0375-9474

VL - 735

SP - 393

EP - 424

JO - Nuclear Physics, Section A

JF - Nuclear Physics, Section A

IS - 3-4

ER -

Coexisting normal and triaxial superdeformed structures in Lu-165

Abstract

Subject classification (UKÄ)

Free keywords

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